Optimal tuning of your PWK carb to the engine requires the relevant jetting.

When working at their best, PWK carbs generally run too rich in the lower rev range, which hurts acceleration. This can be cleaned up with a smaller jet, but this can run too lean in the upper rev range. The PWK Powerjet-System works to even this out. This allows a smaller jet to be used for optimal pull low down and injects additional fuel from ¾ throttle onwards to even out the lean mixture at full throttle. To achieve perfect results, various Powerjet jets from 101 Octane are available.

If you choose not to use the Powerjet option, you should fit the “zero” jet. This makes the Powerjet system redundant.

Universal Product - This part is non application specific. Please verify compatibility for your scooter before purchase. If it is an after-market racing scooter product please measure your original item and scooter, certain modifications might be needed. If you have questions please open a support ticket and we will respond in 24 hours or less. May require some modification for proper installation.